Ehrlichia chaffeensis str. Arkansas
| Names | Ehrlichia chaffeensis str. Arkansas |
|---|---|
| Accession numbers | NC_007799 |
| Background | Ehrlichia chaffeensis (strain Arkansas) is an intracellular vector-borne pathogen that causes human ehrlichiosis. It depends on hematophagous ticks as a vector and wild mammals as a reservoir host. It has been most commonly identified in the Lone Star tick (Amblyomma americanum), with white-tailed deer considered to be the major reservoir. E. chaffeensis is the causative agent of human monocytic ehrlichiosis (HME), a disease that was discovered in 1986. It is a systemic disease that is indistinguishable from human granulocytic ehrlichiosis (HGA) caused by Anaplasma phagocytophilum. It replicates in monocytes/macrophages. The genome of E. chaffeensis is made up of a singular chromosome. Despite the limited ability of Rickettsiales to synthesize amino acids, E.chaffeensis seems to be able to synthesize arginine and lysine. (EBI Integr8) |
| Taxonomy | |
| Kingdom: | Bacteria |
| Phylum: | Proteobacteria |
| Class: | Alphaproteobacteria |
| Order: | Rickettsiales |
| Family: | Anaplasmataceae |
| Genus: | Ehrlichia |
| Species: | chaffeensis |
| Strain | Arkansas |
| Complete | Yes |
| Sequencing centre | (13-DEC-2005) The Institute for Genomic Research, 9712 Medical Center Dr, Rockville, MD 20850, USA (22-FEB-2006) National Center for Biotechnology Information, NIH, Bethesda, MD 20894, USA |
| Sequencing quality | Level 6: Finished |
| Sequencing depth | NA |
| Sequencing method | NA |
| Isolation site | Patient on an army base in Arkansas in 1990 |
| Isolation country | USA |
| Number of replicons | 1 |
| Gram staining properties | Negative |
| Shape | Bacilli |
| Mobility | No |
| Flagellar presence | No |
| Number of membranes | 2 |
| Oxygen requirements | NA |
| Optimal temperature | NA |
| Temperature range | Mesophilic |
| Habitat | HostAssociated |
| Biotic relationship | Symbiotic |
| Host name | Homo sapiens |
| Cell arrangement | Singles |
| Sporulation | NA |
| Metabolism | NA |
| Energy source | NA |
| Diseases | Monocytic ehrlichiosis |
| Pathogenicity | Yes |